21. Many people around the world ________ to the Big Ben in London for many recent years. A. travel B. have travelled C. are travelling D. travelled 22. The number of English speakers in the world _________ quickly this year. A. is increasing B. has increased C. increases D. increase 23. In many English speaking countries, people _________ Christmas on December 25th. A. are celebrating C. celebrate B. has celebrated D. are being celebrating 24. The United Kingdom _______ a union of four countries: England, Scotland, Wales and Northern Ireland. A. are B. is C. has been D. being 25. Milions of people __________ Disneyland in California since it opened. A. have visited B. visits C. visiting D. are visiting 26. According to the timetable, the Photo Exhibition ___________ in the Main Hall on April 10th. A. will take place C. taking place B. takes place D. have taken place 27. The Flower Festival ________ in the school centre on April 18th. It is a day to promote children’s participation in sports. A. is held B. holds C. will hold D. is holding 28. The trains for the visit to the dinosaur museum _________ at 9.00 a.m on July 15th. A. leave B. have left C. are being leave D. leaves 29. It’s the third time she _________ Canada so far. A. has gone to B. is going to C. has been gone to D. goes to 30. Big Ben is a major monument in London which ________ the United Kingdom. A. symbolizes B. has symbolized C. is symbolizing D. symbolise